Python Networking Solutions Guide: Leverage the Power of Python to Automate and Maintain your Network Environment

by Tolga Koca

Length: 456 pages
Edition: 1
Language: English
Publisher: BPB Publications
Publication Date: 2023-01-21
ISBN-10: 9355513577
ISBN-13: 9789355513571
Sales Rank: #0 (See Top 100 Books)

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Automate Your Network Configuration, Management, and Operation Tasks with Python

Key Features

Get familiar with the basics of network automation.
Understand how to automate various network devices like Routers, Switches, Servers, and Firewalls.
Learn how to create customized scripts to manage multiple devices using Python.

Description

Python is the de-facto standard for automated network operations nowadays. With the power of Python, network devices can be automated easily with basic scripts. Written in direct and intuitive language, this practical guide will help you to automate your network with Python.

In this book, you will understand what network automation is precisely. The book will help you get familiar with the basics of the Python language. It will also help you learn how to monitor, maintain, and deploy configurations in network and system devices such as routers, switches, servers, and storage. The book will explain how to automate cloud infrastructures like AWS (Amazon Web Services) with Python.

By the end of the book, you will be able to decrease your routine workload and improve productivity by automating your networking tasks.

What you will learn

Get familiar and work with Python libraries like Paramiko and Netmiko.
Write and deploy scripts to configure network devices such as Firewalls, Routers, and Switches.
Understand how to use Python scripts for network security.
Learn how to combine all micro scripts in the main Python script.
Create, configure, operate, and maintain AWS services through Python scripts using Boto3.

Who this book is for

This book is specially designed for system administrators, infrastructure automation engineers, IT engineers, and network engineers to leverage Python’s potential as an automation tool to centrally manage routers, servers, and cloud infrastructures in an organizational network and beyond.

Cover Page
Title Page
Copyright Page
Dedication Page
About the Author
About the Reviewer
Acknowledgement
Preface
Errata
Table of Contents
1. Introduction to Network Automation
    Structure
    Objectives
    Introduction to network automation
        Benefits of network automation
        Future of networking
    Introduction to Python
        Python usage area
    Python installation
        Python for Windows
        Python for Linux
        Python for MAC
    Running Python codes
    Pycharm installation for Windows
    Install and import Python modules
    Conclusion
    Multiple choice questions
        Answer
    Questions
2. Python Basics
    Structure
    Objectives
    Print and ınput functions
        Print()
        Input ( )
    Data types
        String and integer
        String methods
        List
        List methods
        Dictionary
        Dictionary methods
    Statements and conditions
        If condition
        For statement
        While statement
        Break and continue statement
        Range statement
        For else statement and nested loops
        Try…except statement
    Conclusion
    Multiple choice questions
        Answers
    Questions
3. Python Networking Modules
    Structure
    Objectives
    File handling
        Open function
        OS module
        Word files
        Excel files
    RE modules
        RE module functions
        Special sequences
        Sets in the RE module
    Advanced topics of Python
        Functions
            Functions with parameters
            Functions with default parameters
            Call variables from functions
        Creating modules
        Classes
    Conclusion
    Multiple choice questions
        Answers
    Questions
4. Collecting and Monitoring Logs
    Structure
    Objectives
    Connection modules
        SSH connection
            Paramiko module For SSH
            Connect 1 device with Paramiko
            Running configuration commands with Paramiko
            Connect to multiple devices with Paramiko
            Netmiko module for SSH
            Connect a single device with Netmiko
            Connect to multiple devices with Netmiko
        Telnet connection
            Telnetlib module for telnet
            Connect to multiple devices with telnetlib
            Netmiko module for telnet
    Collecting logs
        Collecting version and device information
        Collecting CPU levels
        Finding duplicated IP address
        Collecting logs with multithreading
    Tools and calculators
        IP address validator
        Subnet calculator
    Conclusion
    Multiple choice questions
        Answers
    Questions
5. Deploy Configurations in Network Devices
    Structure
    Objectives
    Configure network devices
        Configuration of interfaces
        Replacing configurations on files
    Configure devices with Jinja2 template
        Introduction to Jinja2 template
        Introduction to YAML language
        Rendering Jinja template with a YAML file
        Configure devices with Jinja
        If statement in Jinja
    Configure devices with Napalm module
        Collect logs from devices with NAPALM
        Configure devices with NAPALM
    Configure devices with Nornir module
        Configure inventory in Nornir
        Connection to devices with Nornir-Netmiko
        Connection to devices with Nornir-NAPALM
        Configure devices by Nornir and Jinja template
    Conclusion
    Multiple choice questions
        Answers
    Questions
6. File Transfer and Plotting
    Structure
    Objectives
    File transfers
        Backup configuration file with SSH
        File transfer with FTP connection
        File transfer with SFTP connection
        File transfer with Netmiko SCP connection
        Netmiko SCP connection with concurrent module
        File transfer with Nornir SCP connection
        Backup configuration file with SCP
    Plotting data
        Plotting CPU levels
        Plotting interface bandwidth
    Conclusion
    Multiple choice questions
        Answers
    Questions
7. Maintain and Troubleshoot Network Issues
    Structure
    Objectives
    Upgrade network devices
    Alert alarms in devices
    Collect logs with SNMP
    Send logs via email
    Reachability test to network devices
        Ping test script
        Traceroute test script
    Conclusion
    Multiple choice questions
        Answers
    Questions
8. Monitor and Manage Servers
    Structure
    Objectives
    Implement server environment
        Download VMware player and Ubuntu
        Install Ubuntu on VMware
        Activate SSH connection
    Maintain Linux servers
        Collect logs via syslog
        Login servers with secure password
        Collect CPU and memory levels
        Collect interface information
        Collect type and permission of files
    Server configurations
        Create users in servers
        Install packages
        Transfer files with Paramiko
        Reboot servers concurrently
        Stop running processes by script
    Conclusion
    Multiple choice questions
        Answers
    Questions
9. Network Security with Python
    Structure
    Objectives
    Activate security services
        Install and activate the “Firewalld” service on servers
        Configure firewall settings on servers
        Create access lists in network devices
    Manipulate network packets with scapy
    Check logs and configurations
        Check CPU levels periodically with Crontab
        Check router configuration for insecure passwords
        Check port security configuration in routers
            Collect packets from ports with Pyshark
    Conclusion
    Multiple choice questions
        Answers
    Questions
10. Deploying Automation Software
    Structure
    Objectives
    Introduction to InquirerPy module
    Automation tool design
    Create main tool script
    Create subtask scripts
        Network device scripts
        Server scripts
        Other remaining scripts
    Conclusion
    Multiple choice questions
        Answers
    Questions
11. Automate Cloud Infrastructures with Python
    Structure
    Objectives
    Cloud environment deployment
        Introduction to AWS
        Installation of Boto3 and AWS CLI
    EC2 instance management
        Manage EC2 instances with Python
        Connection to EC2 instances
    S3 bucket management
    EBS volume management
        Manage EBS volumes
        Create snapshots of EBS volumes
        Attach EBS volume to EC2 instance
    IAM user management
    Conclusion
    Multiple choice questions
        Answers
    Questions
Index